Spad

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Spad \Spad\ (sp[a^]d), n. (Mining)
     A nail one or two inches long, of iron, brass, tin, or tinner
     iron, with a hole through the flattened head, used to mark
     stations in underground surveying.
     [Webster 1913 Suppl.]